Folding clasp for interchangeable watch strap

Abstract

The folding clasp for an interchangeable watch strap comprises at least two arms articulated together and foldable against each other, provided with a fixing device to hold the clasp in closed position. The free end of one ( 1 ) of the arms ( 1, 3 ) is provided with a securement device for the end of a strap tongue ( 11 ) comprising a guide ( 8 ) having in cross-section a general U shape, an axle ( 9 ) connecting the two lateral wings of the guide ( 8 ) and holding members ( 10 ) adapted to coact with the upper surface of the tongue ( 11 ) of the strap. The free end of the other arm ( 3 ) of the clasp is pivoted on a cover ( 14 ) with the help of a screw ( 12 ), this cover ( 14 ) having lateral portions ( 13 ) interconnected by an axle ( 15 ). The cover ( 14 ) of the clasp comprises retaining members ( 16 ) adapted to coact with the upper surface of a second tongue ( 17 ) of the strap.

What is claimed is:  
     
       1. Folding clasp for an interchangeable watch strap, comprising at least two arms articulated together and foldable against each other, provided with a fixing device to hold the clasp in closed position, characterized by the fact that the free end of one ( 1 ) of the arms ( 1 ,  3 ) is provided with a device for securing the end of a strap tongue ( 11 ) comprising a guide ( 8 ) having in cross-section a general U shape, an axle ( 9 ) connecting two lateral wings of the guide ( 8 ) and folding members ( 10 ) adapted to coact with the upper surface of the tongue ( 11 ) of the strap; by the fact that the free end of the other arm ( 3 ) of the clasp is pivoted on a cover ( 14 ) with the help of a screw ( 12 ), this cover ( 14 ) having lateral portions ( 13 ) connected by an axle ( 15 ); and by the fact that the cover ( 14 ) of the clasp comprises retaining members ( 16 ) adapted to coact with the upper surface of a second tongue ( 17 ) of the strap.